<template>
  <div :class="className" :style="{height:height,width:width}" />
</template>

<script>
import echarts from 'echarts'
require('echarts/theme/macarons') // echarts theme
import resize from './mixins/resize'

const animationDuration = 3000

export default {
  mixins: [resize],
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '300px'
    }
  },
  data() {
    return {
      chart: null
    }
  },
  mounted() {
    this.$nextTick(() => {
      this.initChart()
    })
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    this.chart.dispose()
    this.chart = null
  },
  methods: {
    initChart() {
      this.chart = echarts.init(this.$el, 'macarons')

      this.chart.setOption({
         title: {
                text: '浏览器占比变化',
                subtext: '纯属虚构',
                top: 10,
                left: 10
            },
            tooltip: {
                trigger: 'item'
            },
            legend: {
                type: 'scroll',
                bottom: 10,
                data: (function (){
                    var list = [];
                    for (var i = 1; i <=28; i++) {
                        list.push(i + 2000 + '');
                    }
                    return list;
                })()
            },
            visualMap: {
                top: 'middle',
                right: 10,
                color: ['red', 'yellow'],
                calculable: true
            },
            radar: {
                indicator: [
                    { text: 'IE8-', max: 400},
                    { text: 'IE9+', max: 400},
                    { text: 'Safari', max: 400},
                    { text: 'Firefox', max: 400},
                    { text: 'Chrome', max: 400}
                ]
            },
            series: (function (){
                var series = [];
                for (var i = 1; i <= 28; i++) {
                    series.push({
                        name: '浏览器（数据纯属虚构）',
                        type: 'radar',
                        symbol: 'none',
                        lineStyle: {
                            width: 1
                        },
                        emphasis: {
                            areaStyle: {
                                color: 'rgba(0,250,0,0.3)'
                            }
                        },
                        data: [{
                            value: [
                                (40 - i) * 10,
                                (38 - i) * 4 + 60,
                                i * 5 + 10,
                                i * 9,
                                i * i /2
                            ],
                            name: i + 2000 + ''
                        }]
                    });
                }
                return series;
            })()
      })
    }
  }
}
</script>
